Home / 80,454,534.72-111,025,128.96-43,784,318.40

Finding the Fourth Proportional to 80,454,534.72, 111,025,128.96 and 43,784,318.40

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Solution

The fourth proportional to 80,454,534.72, 111,025,128.96 and 43,784,318.40 is: 60,421,200.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,454,534.72 : 111,025,128.96 = 43,784,318.40 : x
  2. Step 2: Convert to fraction form
    80,454,534.72/111,025,128.96 = 43,784,318.40/x
  3. Step 3: Cross multiply
    80,454,534.72x = 111,025,128.96 × 43,784,318.40
  4. Step 4: Simplify right side
    80,454,534.72x = 4,861,159,596,785,700
  5. Step 5: Solve for x
    x = 4,861,159,596,785,700/80,454,534.72
  6. Step 6: Final answer
    x = 60,421,200.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.